Duluth, MN (NNCNOW.com)-- The controversial headshop Last Place on Earth has reopened Friday morning even though owner Jim Carlson will remain behind bars until at least Monday.

The Lake Superior Drug and Violent Crime Task Force and the Superior Police Department raided Carlson's Superior home. A friend of Carlson's who was staying in the home at the time of the raid said the police took financial records from the house.

Owner Jim Carlson will spend the weekend in the custody of US Marshals, waiting for a hearing that could either free him, or keep him detained for months.

Authorities arrested Carlson Wednesday night for allegedly violating his probation tied to a federal indictment. In the past week, Carlson has been arrested twice.

At a court hearing Thursday, a detention hearing was set for Monday in Minneapolis to decide whether or not Carlson violated his probation by possessing a firearm.

'Last Place' was raided by federal authorities in 2012. In January of 2013, Carlson, along with three others was indicted on 54-counts relating to the sale of synthetic drugs.

Part of Carlson's amended release deal included that he could be around dangerous, but legal weapons like swords and pepper spray, because 'Last Place' sells those items but guns were prohibited.

In last Friday's raid by Duluth Police, a gun was recovered and confiscated. Carlson's attorney, Randall Tigue, says the 12-gauge shotgun found was there unbeknownst to Carlson.

"They're basing it [the probation violation] on the fact they found a gun that was hidden and buried, which the police couldn't find the first two times they raided his store and I think that's an flimsy basis to ask for detention," said Tigue, outside the Federal Building Thursday.

Tigue says the hearing on Monday is likely to only last one day, and if he's found guilty of violating his probation, Carlson will be detained until September. That's when the federal trial is scheduled.

Joe Gellerman, Carlson's son, said he will consult with his legal council before reopening 'Last Place'.